Malware Analysis Report

2025-01-19 05:43

Sample ID 210929-1fy4psgaan
Target cf7bad7f9acd8c5ee2643bf34c02ee38e57cddfd3c8810100e253a3a9e5cafbf.apk
SHA256 cf7bad7f9acd8c5ee2643bf34c02ee38e57cddfd3c8810100e253a3a9e5cafbf
Tags
flubot banker infostealer obfuscation ransomware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

cf7bad7f9acd8c5ee2643bf34c02ee38e57cddfd3c8810100e253a3a9e5cafbf

Threat Level: Known bad

The file cf7bad7f9acd8c5ee2643bf34c02ee38e57cddfd3c8810100e253a3a9e5cafbf.apk was found to be: Known bad.

Malicious Activity Summary

flubot banker infostealer obfuscation ransomware trojan

FluBot Payload

FluBot

Requests dangerous framework permissions

Loads dropped Dex/Jar

Requests enabling of the accessibility settings.

Uses Crypto APIs (Might try to encrypt user data).

Uses reflection

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-09-29 21:36

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-09-29 21:36

Reported

2021-09-29 21:39

Platform

android-x64

Max time kernel

863969s

Max time network

44s

Command Line

com.didiglobal.passenger

Signatures

FluBot

banker trojan infostealer flubot

FluBot Payload

Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

Description Indicator Process Target
N/A /data/user/0/com.didiglobal.passenger/app_apkprotector_dex/X7pLLsxk.browser N/A N/A
N/A /data/user/0/com.didiglobal.passenger/app_apkprotector_dex/X7pLLsxk.browser N/A N/A

Requests enabling of the accessibility settings.

Description Indicator Process Target
Intent action android.settings.ACCESSIBILITY_SETTINGS N/A N/A

Uses Crypto APIs (Might try to encrypt user data).

ransomware
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Uses reflection

obfuscation
Description Indicator Process Target
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A

Processes

com.didiglobal.passenger

Network

Country Destination Domain Proto
US 1.1.1.1:853 tcp
US 216.239.35.4:123 time.android.com udp

Files

/data/user/0/com.didiglobal.passenger/app_apkprotector_dex/X7pLLsxk.browser

MD5 21e3742f3fd4b287706a7f31a53054ff
SHA1 842475489314a9678a98d910142e1c938ab4875e
SHA256 e79829dc75b24747a0f4c0aabe92e9fe60a365f00f02a649dd3a207e0c3a30fb
SHA512 3964a311b5a8c76f1352e6c99d42804e2fc98ec58f8bc7ec2f03835d13598252d6682347ea618a2e429482dbe4359d4cd6bf893a917b6df9dbbba4b7c7ddf401

/data/user/0/com.didiglobal.passenger/app_apkprotector_dex/X7pLLsxk.browser

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.didiglobal.passenger/app_apkprotector_dex/X7pLLsxk.browser

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.didiglobal.passenger/shared_prefs/DHL.xml

MD5 f0012f219b5fc6f3437ab97b35d676e2
SHA1 dcefd2b369f4cda8fbf1feb1abd8c0ef5d209368
SHA256 55dc7f5276a54a324056b4da769bf89d86258e516ff96df31369ffd5bfad211b
SHA512 b4fe9bdd2f2e1323554eed396e4f072dc75f5e82a0ec058c769c6b022fdbc5e28a90109c325b46a850257a8017b6127a19e28acf942f652ba5d1506ce51d3906